Interference on Humminbird Sonar

Prchjerker your suggestion about the ground wire did the trick. Thanks for the suggestion.

will that also work if hummer is on starting battery?

Don't use your boat hull like a conductor. You asking for trouble. Ground the hull at one point only if need be. This is actually called bonding. You can use an isolated ground bar if you got a lot of ground runs. Some fuse panels (power distribution) have ground bars built in. You might mask one problem and create others with hull grounding. My humble 2 cents, but it's your boat.

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Originally Posted by Cane Pole

Don't use your boat hull like a conductor. You asking for trouble. Ground the hull at one point only if need be. This is actually called bonding. You can use an isolated ground bar if you got a lot of ground runs. Some fuse panels (power distribution) have ground bars built in. You might mask one problem and create others with hull grounding. My humble 2 cents, but it's your boat.

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I agree with Canepole, you start grounding to the hull and you may cause electrolis!

ive been in a grounded boat then , thats what happened to my hair. yep thats it

I'm just relaying what we I was told by both Minnkota and humminbird.Did it on my last 2 boats and several others and havent had any problems.

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Originally Posted by prchjerker

I'm just relaying what we I was told by both Minnkota and humminbird.Did it on my last 2 boats and several others and havent had any problems.

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This is ok. You are not using the hull as a dc current return path by grounding the battery as you mentioned. This is called bonding. Ham Radio guys know more about this (bonding) than I do.

What I am saying is do not use the boat hull like a car chassis (as related to or relative to wiring).